xcvator wrote:A step drill will work ok,( $30-00 from the bgs ) you may have to drill a pilot hole, use lots of lubrication, like wd40 or rp7 and then grind out the hole a bit bigger :handgestures-thumbupleft:
D'Oh! I forgot to hit the subscribe option so thought I was getting the cold shoulder treatment ;-)
Thanks Keith, after watching a lot of videos, and reading up on it I was getting close to coming to the same conclusion and your advice seals it.
My step drill cost over $50 so was a bit reticent to risk it but it should be fine. Step drills are great things. :handgestures-thumbupleft:
I particularly liked one idea to give it a big rest at every step - no hurry in all of this so why not?
I'll be using my "Tap Magic" cutting fluid initially, it should be fine but if I detect over heating I'll make up a solution of water detergent and oil and flood the thing.